Projects

The LARGE-MEM project is a small-scale but dense noise-based study aiming at
better understanding rainfall and groundwater storage effects on seismic
velocities measured by a dense seismic network. The goal of LARGE-MEM is to
demonstrate that the actual quantity and location of water in the subsurface can
be estimated from measurements using a LargeN array. To achieve this, the data
from superconducting and absolute gravimeters located in a gallery under the
study site will be used to measure precisely the mass of water sampled by the
seismic waves.
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The AcceleROB project aims at deploying 90 low-cost accelerometric stations in
Belgium in order to measure the real ground motion whenever a larger-than-usual
earthquake will strike. "AcceleROB" is an acronym for "Accelerometric station
of the Royal Observatory of Belgium" (Seismology-Gravimetry
service). A complete AcceleROB includes: a RaspberryPi microcomputer, a power
supply, a network cable, a JoyWarrior Accelerometer and a tripod brick (a clean
one, not like on the picture at the right!). This setup allows installing the
sensor in basements without the need to leave a computer permanently switched on.
The station is low-consumption: less than 3 Watts (7 W with the Devolo) and
low-bandwidth: around 365 bytes per second (30MB/day)!
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Karst Aquifer ReseArch by Geophysics (KARAG) project is a research project
resulting from the collaboration of 3 belgian institutes (University of Namur,
University of Mons and Royal observatory of Belgium), and U. Luxembourg. This 4
years project that started in July 2013 is supported by the Fund for Scientific
Research – FNRS from the Wallonia-Brussels Federation.
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Why do large earthquakes not always occur at regular time interval on a given
fault? Present-day physical models on repeating ruptures are poorly constrained
and can yield inconsistent predictions. To be able to anticipate future seismic
catastrophe, we need to measure and understand the irregularities in the seismic
cycle.
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